105849769898 has 8 divisors (see below), whose sum is σ = 158825537220. Its totient is φ = 52907924160.

The previous prime is 105849769889. The next prime is 105849769931. The reversal of 105849769898 is 898967948501.

It can be written as a sum of positive squares in 2 ways, for example, as 99763117609 + 6086652289 = 315853^2 + 78017^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×105849769898² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8472593 + ... + 8485076.

Almost surely, 2^105849769898 is an apocalyptic number.

105849769898 is a deficient number, since it is larger than the sum of its proper divisors (52975767322).

105849769898 is a wasteful number, since it uses less digits than its factorization.

105849769898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16960792.

The product of its (nonzero) digits is 313528320, while the sum is 74.

The spelling of 105849769898 in words is "one hundred five billion, eight hundred forty-nine million, seven hundred sixty-nine thousand, eight hundred ninety-eight".